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MOPB68 |
Development of Profile Monitor System for High Intense Spallation Neutron Source |
target, neutron, proton, radiation |
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- S.I. Meigo, A. Akutsu, M. Futakawa, K. Ikezaki, M. Ooi, S. Sakamoto
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
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At the JSNS in J-PARC, a mercury target is employed as the neutron production target. It is well known that the damage on the mercury target is promotional to the 4th power of the peak current density of the primary proton beam on the target. For the high intense neutron source, the profile on the target is important to drive the neutron source with the continuously observation of the profile. We have developed to Multi Wire Profile Monitor System (MWPM). During beam operation, when the abnormally of the beam is found, the beam is cut out by the Machine Protection System (MPS). For the measurement of the two dimension observation on the target, we have developed the system based on the residual radiation measurement by using an imaging plate (IP), It is found that the both result by the MWPM and IP shows good agreement.
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